According to HansLangseth.com, which exists, “Hans (pronounced to rhyme with dance) used to roll it up and tuck it into his coat or vest, which hid much of it” when he was farming. But every so often, when traveling with a local circus show, King Whiskers would let it all hang out, prompting numerous nonbelievers to tug on the ratty mane to see if it was, in fact, real.

Since that's a little impractical in the modern age, we've rounded up a newsreel and a vintage photo as proof.